CVE-2003-1241: Cross-site scripting vulnerability (XSS) in (1) admin_index.php, (2) admin_pass.php, (3) admin_modif.php, and

Routine

MEDIUM 4.3DOWNGRADE

CVE-2003-1241 is a medium-severity flaw (CVSS 4.3) affecting myguestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting vulnerability (XSS) in (1) admin_index.php, (2) admin_pass.php, (3) admin_modif.php, and (4) admin_suppr.php in MyGuestbook 3.0 allows remote attackers to execute arbitrary PHP code by modifying the location parameter to reference a URL on a remote web server that contains file.php via script injected into the pseudo, email, and message parameters.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: levcgi.com

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:03 UTCUpdated Record last modified

levcgi.com myguestbook DOWNGRADE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

apt-cache policy myguestbook || rpm -q myguestbook || myguestbook --version

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison myguestbook sudo apt install myguestbook=<VERSION_BEFORE_3.0> sudo apt-mark hold myguestbook

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list myguestbook sudo dnf downgrade myguestbook-<VERSION_BEFORE_3.0> sudo dnf versionlock add myguestbook

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2003-1241?

myguestbook: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-1241 being exploited?

CVE-2003-1241 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2003-1241 affect?

CVE-2003-1241 affects myguestbook. Severity is medium (CVSS 4.3). Cross-site scripting vulnerability (XSS) in (1) admin_index.php, (2) admin_pass.php, (3) admin_modif.php, and (4) admin_suppr.php in MyGuestbook 3.0 allows remote attackers to execute arbitrary PHP code by modifying the location parameter t

How urgent is CVE-2003-1241?

Priority 37/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2005-2162 MEDIUM 5.0 DOWNGRADE PHP remote file inclusion vulnerability in form.inc.php3 in MyGuestbook 0.6.1 allows remote attackers to execu
CVE-2002-0732 HIGH 7.5 DOWNGRADE Cross-site scripting vulnerability in MyGuestbook 1.0 allows remote attackers to execute arbitrary script or i

References

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